Frequency stabilization of a quantum cascade laser by weak resonant feedback from a Fabry-Perot cavity

Description

Data from peer-reviewed publication: G. Zhao et al., Frequency stabilization of a quantum cascade laser by weak resonant feedback from a Fabry-Perot cavity, Optics Letters. Frequency-stabilized mid-infrared lasers are valuable tools for precision molecular spectroscopy. However, their implementation remains limited by complicated stabilization schemes. Here we achieve optical self-locking of a quantum cascade laser to the resonant leak-out field of a highly mode-matched two-mirror cavity. The result is a simple approach to achieving ultra-pure frequencies from high-powered mid-infrared lasers. For short time scales (<0.1 ms), we report a linewidth reduction factor of 3×10^(-6) to a linewidth of 12 Hz. Furthermore, we demonstrate two-photon cavity-enhanced absorption spectroscopy of an N2O overtone transition near a wavelength of 4.53 um.

Resources

Name Format Description Link
47 https://data.nist.gov/od/ds/mds2-2409/readme.txt.sha256
47 readme.txt https://data.nist.gov/od/ds/mds2-2409/readme.txt
8 Fleisher_stableQCL_rev1_fig4_data.xls https://data.nist.gov/od/ds/mds2-2409/Fleisher_stableQCL_rev1_fig4_data.xls
47 https://data.nist.gov/od/ds/mds2-2409/Fleisher_stableQCL_rev1_fig4_data.xls.sha256
47 https://data.nist.gov/od/ds/mds2-2409/Fleisher_stableQCL_rev1_fig5_data.xls.sha256
47 https://data.nist.gov/od/ds/mds2-2409/Fleisher_stableQCL_rev1_fig1_data.xls.sha256
53 Fleisher_stableQCL_rev1_fig1_data.xls https://data.nist.gov/od/ds/mds2-2409/Fleisher_stableQCL_rev1_fig1_data.xls
8 Fleisher_stableQCL_rev1_fig5_data.xls https://data.nist.gov/od/ds/mds2-2409/Fleisher_stableQCL_rev1_fig5_data.xls
0 https://doi.org/10.18434/mds2-2409

Tags

  • diode-lasers
  • oceans
  • environment-and-climate
  • nitrous-oxide
  • marine-mammals
  • optical-resonators
  • seabirds
  • two-photon-absorption
  • quantum-cascade-lasers
  • remote-sensing
  • laser-stabilization
  • laser-metrology
  • ph
  • greenhouse-gases

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